Construction of ceilings



T. CULSHAW.

CONSTRUCTION OF CEILINGS. APPLICATION FILED OCT. 1a, 1919.

1, 94,714., Patented 0011.25, 1921,

THOMAS CULSHAW, OF MALVERN, VICTORIA, AUSTRALIA.

CONSTRUCTION OF CEILINGS,

Specification of Letters Patent.

Patented Oct. 25, 1921.

Application filed October 13, 1919. Serial No. 330,318.

To allwhomz'tmayconcerm'.

Be it known that I, THOMAS CULsHAw, of 17 Carnarvon road, Malvern, in the State of Victoria, Commonwealth of Aus tralia, architect, a subject of the King of Great Britain, have invented certain new and useful Improvements in and Connected With the Construction of Ceilings, of which the following is aspecification.

' This invention relates to the construction of ceilings of dwellings, halls, churches and the like and has for its object the promotion of ventilation therethrough.

The invention consists in making a ceiling of two series of panels, one of which series shall be closely attached to the ceiling joists with alternating spaces between each panel which spaces are filled by another series of panels so arranged in the ceiling that each member of the series will overlap the intervals between the first series and at the same time leave spaces between the panels of each series for the circulation of air.

In the accompanying drawings ways of carrying the invention into effect are illustrated, and it will be understood that the series of covering panels may be hung or suspended below the series fixed to the joists in any suitable manner and in order to provide for the circulation of air between and about the same.

Figure l is a perspective view'from below of parts of a ceiling made in accordance with the invention, and

Fig. 2 is a like view but from above the room.

Fig. 3 shows in side elevation various modes of securing the covering panels, and

Fig. 4c is an end sectional elevation ofthe panels showing the covering members at-' tached to hangers.

To the ceiling joists 5 the parallel panels 6 are attached in any convenient manner to alternate with spaces between, which spaces are partially closed by the panels 7 that slightly overlap the panels 6 and cover the intervals without entirely closing the same.

One way of securing the covering panels in position is by utilizing the hangers 8 that are nailed or otherwise fastened or held upon the joists 5 and are of sufficient length to project downwardly beyond the fixed panels 6 according to the ventilating space desired between the two series of panels. The covering pieces are then fastened crosswise to the ends of the hangers 8 and are thereby held in position.

The panels can be made of wood boards or planks or a number of boards connected together, or the same may consist of strips of metal, fibro-cement sheets or other suitable material attached in position in the manner indicated.

In Fig. 3 I have shown the above method of attaching the covering members, but instead of the hangers 8, the distance pieces 9 may be used, which, after being cut to the required depth or thickness, are nailed to the joists. The covering panels 7 can then be nailed to these pieces, or the brackets 10 may be secured to the joists and the mem bers 7 secured to the brackets.

In the result, a ceiling constructed of wood or metal in the manner explained will present a solid and attractive appearance and will, at the same time, possess ample ventilation and means of circulation for air between the room and the roof. To facilitate an upcast draft it is advisable to provide air vents in the walls of the room near the fioor instead of the usual vents placed in the walls near to the ceiling. Thus, if the room be closed a constant circulation of air therein is possible.

Having now described my invention what I claim as new and desire to secure by Letters Patent is:

A ceiling structure comprising joists, hangers secured to the joists at spaced intervals-and projecting below the joists, panels secured to the joists at points between the hangers, and panels secured to the lower ends of the hangers and thereby arranged between and in a plane below the first named panels and forming spaces therebetwecn, said second named panels slightly overlapping the first nanied panels.

THOMAS GULSHAW. 

